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Home >> Lexus >> 1994 >> SC 300 Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel >> Component Testing >> Fuel Level Warning Light Switch Test

Fuel Level Warning Light Switch Test

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  1. Remove fuel gauge sending unit. Apply battery voltage across the following terminals of fuel gauge sending unit connector (sending unit side of connector).
  2. Connect a 3.4-watt test light between battery positive terminal and sending unit connector. Test light should come on after a few moments. Submerge entire sending unit (or fuel level sensor portion) in a container of fuel. Test light should go out. If operation is not as specified, replace sending unit.
Fig 1: Testing Fuel Level Warning Switch (SC300)
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